diff --git a/src/main/java/controllers/MainController.java b/src/main/java/controllers/MainController.java
index 97b8fdc..438ea11 100644
--- a/src/main/java/controllers/MainController.java
+++ b/src/main/java/controllers/MainController.java
@@ -46,7 +46,7 @@ public class MainController extends Controller{
     }
 
     public void getNotifications(){
-        List<String> notifications = Session.session.getDataManager().getNotifications().get(Session.session.getUser().getStudentNumber());
+        List<String> notifications = Session.session.getDataManager().getNotifications().get(Session.session.getUser().getID());
         if (notifications != null){
             for (String s: notifications){
                 popUp(Alert.AlertType.INFORMATION, "Notification!", "You have received a Notification", s);
@@ -57,7 +57,6 @@ public class MainController extends Controller{
     public void login() throws Exception {
         //validate login
         if (validateLogin(username.getText(), password.getText())){
-            Session.session.getDataManager().newLogged();//sets new arrays for new log ins
             getNotifications();
             changeScene(SceneCode.HOME);
         }else{
diff --git a/src/main/java/controllers/SharedTripsController.java b/src/main/java/controllers/SharedTripsController.java
index 8cca545..82239d5 100644
--- a/src/main/java/controllers/SharedTripsController.java
+++ b/src/main/java/controllers/SharedTripsController.java
@@ -13,10 +13,7 @@ import javafx.scene.layout.GridPane;
 import javafx.scene.layout.RowConstraints;
 import javafx.stage.Popup;
 import javafx.stage.Stage;
-import model.SharedTrip;
-import model.Stop;
-import model.Trip;
-import model.TripStop;
+import model.*;
 
 import java.net.URL;
 import java.util.HashMap;
@@ -132,7 +129,7 @@ public class SharedTripsController extends Controller{
         //book button
         Button bookRide = new Button("Book Ride");
         bookRide.setOnAction(e->{
-            trip.bookSeat(parent.getSession().session.getUser());
+            trip.bookSeat(Session.session.getUser());
             tripDetails.close();
             search();
             popUp(Alert.AlertType.CONFIRMATION, "Success!", "You have Successfully booked a ride!", "The ride has been successfully booked and can be viewed in your booked rides.");
@@ -161,7 +158,7 @@ public class SharedTripsController extends Controller{
         Pattern stopNamePattern = Pattern.compile(".*"+stopName.getText()+".*", Pattern.CASE_INSENSITIVE);
         //ignore direction
         boolean ignoreDirection = directionBox.getSelectionModel().isSelected(0) || directionBox.getValue() == null;
-        for(SharedTrip sharedTrip: parent.getSession().getDataManager().getSharedTrips()){
+        for(SharedTrip sharedTrip: Session.session.getDataManager().getAllSharedTrips()){
             if (sharedTrip.isFull()){
                 continue;
             }
@@ -192,7 +189,7 @@ public class SharedTripsController extends Controller{
 
     @Override
     public void runLater(){
-        sharedTrips = FXCollections.observableArrayList(parent.getSession().getDataManager().getSharedTrips());
+        sharedTrips = FXCollections.observableArrayList(Session.session.getDataManager().getAllSharedTrips());
         sharedTripsTable.setItems(sharedTrips);
         tripNameColumn.setCellValueFactory(p -> new SimpleStringProperty(p.getValue().name));
         directionColumn.setCellValueFactory(p -> new SimpleStringProperty(p.getValue().direction));
diff --git a/src/main/java/model/DataManager.java b/src/main/java/model/DataManager.java
index e622385..12780b8 100644
--- a/src/main/java/model/DataManager.java
+++ b/src/main/java/model/DataManager.java
@@ -18,24 +18,24 @@ public class DataManager {
     private Map<String, ObservableList<Stop>> stops;
     private Map<String, ObservableList<Route>> routes;
     private Map<String, ObservableList<Trip>> trips;
-    private ObservableList<SharedTrip> sharedTrips;
+    private Map<String, ObservableList<SharedTrip>> sharedTrips;
     private Map<String, User> users;
     private Map<String, Driver> drivers;//seperated from users as they are two different types of accounts
     private Map<String, List<String>> notifications; //indexed by user name
 
-    public DataManager(Map<String, List<Ride>> rides, Map<String, List<Stop>> stops, Map<String, List<Route>> routes, Map<String, List<Trip>> trips, List sharedTrips, Map users, Map drivers, Map<String, List<String>> notifications){
+    public DataManager(Map<String, List<Ride>> rides, Map<String, List<Stop>> stops, Map<String, List<Route>> routes, Map<String, List<Trip>> trips, Map<String, List<SharedTrip>> sharedTrips, Map users, Map drivers, Map<String, List<String>> notifications){
         this.rides = convertRideMapToObserver(rides);
         this.stops = convertStopMapToObserver(stops);
         this.routes = convertRouteMapToObserver(routes);
         this.trips = convertTripMapToObserver(trips);
-        this.sharedTrips = FXCollections.observableArrayList(sharedTrips);
+        this.sharedTrips = convertSharedTripMapToObserver(sharedTrips);
         this.users = users;
         this.drivers = drivers;
         this.notifications = notifications;
     }
 
     public DataManager(){
-        this(new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>(), FXCollections.observableArrayList(), new HashMap<String, User>(), new HashMap<String, Driver>(), new HashMap<String, List<String>>());
+        this(new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<>(), new HashMap<String, User>(), new HashMap<String, Driver>(), new HashMap<>());
     }
 
     ////////////////////////////////////////
@@ -132,11 +132,35 @@ public class DataManager {
         return convertTripMapToList(trips);
     }
 
+    //////////////////////////////////
+    //Route
+    //////////////////////////////////
+    private Map<String, ObservableList<SharedTrip>> convertSharedTripMapToObserver(Map<String, List<SharedTrip>> trips){
+        HashMap<String, ObservableList<SharedTrip>> ob = new HashMap<>();
+        for (String key: trips.keySet()){
+            ob.put(key, FXCollections.observableArrayList(trips.get(key)));
+        }
+        return ob;
+    }
+
+    private Map<String, List<SharedTrip>> convertSharedTripMapToList(Map<String, ObservableList<SharedTrip>> trips){
+        HashMap<String, List<SharedTrip>> ob = new HashMap<>();
+        for (String key: trips.keySet()){
+            ob.put(key, new ArrayList<>(trips.get(key)));
+        }
+        return ob;
+    }
+
+    public Map<String, List<SharedTrip>> sharedTripsMapSerialised(){
+        return convertSharedTripMapToList(sharedTrips);
+    }
+
     public void newLogged(){
         rides.putIfAbsent(Session.session.getUser().getID(), FXCollections.observableArrayList());
         stops.putIfAbsent(Session.session.getUser().getID(), FXCollections.observableArrayList());
         routes.putIfAbsent(Session.session.getUser().getID(), FXCollections.observableArrayList());
         trips.putIfAbsent(Session.session.getUser().getID(), FXCollections.observableArrayList());
+        sharedTrips.putIfAbsent(Session.session.getUser().getID(), FXCollections.observableArrayList());
         notifications.putIfAbsent(Session.session.getUser().getID(), FXCollections.observableArrayList());
     }
     //////////////////////////////
@@ -200,17 +224,25 @@ public class DataManager {
         return true;
     }
 
+    public ObservableList<SharedTrip> getAllSharedTrips(){
+        ObservableList<SharedTrip> allTrips = FXCollections.observableArrayList();
+        for (String key: sharedTrips.keySet()){
+            allTrips.addAll(sharedTrips.get(key));
+        }
+        return allTrips;
+    }
+
     public ObservableList<SharedTrip> getSharedTrips() {
-        return sharedTrips;
+        return sharedTrips.get(Session.session.getUser().getID());
     }
 
     public boolean addSharedTrip(SharedTrip sharedTrip){
-        for (SharedTrip t: sharedTrips){
+        for (SharedTrip t: sharedTrips.get(Session.session.getUser().getID())){
             if (sharedTrip.equals(t)){
                 return false;
             }
         }
-        sharedTrips.add(sharedTrip);
+        sharedTrips.get(Session.session.getUser().getID()).add(sharedTrip);
         return true;
     }
 
diff --git a/src/main/java/utils/DataManagerSerialiser.java b/src/main/java/utils/DataManagerSerialiser.java
index 674827a..74031a6 100644
--- a/src/main/java/utils/DataManagerSerialiser.java
+++ b/src/main/java/utils/DataManagerSerialiser.java
@@ -31,7 +31,7 @@ public class DataManagerSerialiser extends Serialiser {
         Map<String, List<Stop>> stops = dataManager.stopsMapSerialised();
         Map<String, List<Route>> routes = dataManager.routesMapSerialised();
         Map<String, List<Trip>> trips = dataManager.tripsMapSerialised();
-        ArrayList<SharedTrip> sharedTrips = new ArrayList<>(dataManager.getSharedTrips());
+        Map<String, List<SharedTrip>> sharedTrips = dataManager.sharedTripsMapSerialised();
         boolean serialRidesSuccess = serialise(rides, "serialisation/rides.json");
         boolean serialStopsSuccess = serialise(stops, "serialisation/stops.json");
         boolean serialRoutesSuccess = serialiseRoutes(routes, "serialisation/routes.json");
@@ -100,9 +100,12 @@ public class DataManagerSerialiser extends Serialiser {
      * @param filepath File path to serialise it to.
      * @return
      */
-    public boolean serialiseSharedTrips(ArrayList<SharedTrip> trips, String filepath){
-        for (Trip trip: trips){
-            trip.serialise();
+    public boolean serialiseSharedTrips(Map<String, List<SharedTrip>> trips, String filepath){
+        for (String key: trips.keySet()) {
+            List<SharedTrip> tripsList = trips.get(key);
+            for (Trip trip : tripsList) {
+                trip.serialise();
+            }
         }
         try{
             String path = getClass().getClassLoader().getResource(filepath).getPath();
@@ -202,11 +205,14 @@ public class DataManagerSerialiser extends Serialiser {
         }
 
         Reader reader5 = new InputStreamReader(getClass().getClassLoader().getResourceAsStream("serialisation/sharedtrips.json"), "UTF-8");
-        ArrayList<SharedTrip> sharedTrips = gson.fromJson(reader5, new TypeToken<ArrayList<SharedTrip>>(){}.getType());
+        HashMap<String, List<SharedTrip>> sharedTrips = gson.fromJson(reader5, new TypeToken<HashMap<String, ArrayList<SharedTrip>>>(){}.getType());
         reader5.close();
 
-        for (SharedTrip trip: sharedTrips){
-            trip.deserialise();
+        for (String key: sharedTrips.keySet()) {
+            List<SharedTrip> sharedTripList = sharedTrips.get(key);
+            for (SharedTrip trip : sharedTripList) {
+                trip.deserialise();
+            }
         }
 
         Reader reader6 = new InputStreamReader(getClass().getClassLoader().getResourceAsStream("serialisation/users.json"), "UTF-8");
diff --git a/target/classes/controllers/MainController.class b/target/classes/controllers/MainController.class
index 0246959..764da6c 100644
Binary files a/target/classes/controllers/MainController.class and b/target/classes/controllers/MainController.class differ
diff --git a/target/classes/model/DataManager.class b/target/classes/model/DataManager.class
index 38b8cf8..bcf5d32 100644
Binary files a/target/classes/model/DataManager.class and b/target/classes/model/DataManager.class differ
diff --git a/target/classes/serialisation/sharedtrips.json b/target/classes/serialisation/sharedtrips.json
index 0637a08..9e26dfe 100644
--- a/target/classes/serialisation/sharedtrips.json
+++ b/target/classes/serialisation/sharedtrips.json
@@ -1 +1 @@
-[]
\ No newline at end of file
+{}
\ No newline at end of file
diff --git a/target/classes/utils/DataManagerSerialiser$1.class b/target/classes/utils/DataManagerSerialiser$1.class
index c63b01f..9f0b43c 100644
Binary files a/target/classes/utils/DataManagerSerialiser$1.class and b/target/classes/utils/DataManagerSerialiser$1.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$2.class b/target/classes/utils/DataManagerSerialiser$2.class
index 43eb8fe..e7b4e0d 100644
Binary files a/target/classes/utils/DataManagerSerialiser$2.class and b/target/classes/utils/DataManagerSerialiser$2.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$3.class b/target/classes/utils/DataManagerSerialiser$3.class
index 371b202..2be77cb 100644
Binary files a/target/classes/utils/DataManagerSerialiser$3.class and b/target/classes/utils/DataManagerSerialiser$3.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$4.class b/target/classes/utils/DataManagerSerialiser$4.class
index 125f6aa..48ac049 100644
Binary files a/target/classes/utils/DataManagerSerialiser$4.class and b/target/classes/utils/DataManagerSerialiser$4.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$5.class b/target/classes/utils/DataManagerSerialiser$5.class
index 488fe2b..f4a135a 100644
Binary files a/target/classes/utils/DataManagerSerialiser$5.class and b/target/classes/utils/DataManagerSerialiser$5.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$6.class b/target/classes/utils/DataManagerSerialiser$6.class
index 813ec1b..fc663bf 100644
Binary files a/target/classes/utils/DataManagerSerialiser$6.class and b/target/classes/utils/DataManagerSerialiser$6.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$7.class b/target/classes/utils/DataManagerSerialiser$7.class
index 1d278bc..38859d0 100644
Binary files a/target/classes/utils/DataManagerSerialiser$7.class and b/target/classes/utils/DataManagerSerialiser$7.class differ
diff --git a/target/classes/utils/DataManagerSerialiser$8.class b/target/classes/utils/DataManagerSerialiser$8.class
index 5dde690..3eee03b 100644
Binary files a/target/classes/utils/DataManagerSerialiser$8.class and b/target/classes/utils/DataManagerSerialiser$8.class differ
diff --git a/target/classes/utils/DataManagerSerialiser.class b/target/classes/utils/DataManagerSerialiser.class
index 65e9425..ebe59eb 100644
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